Run Kiro on Your Phone (iPhone + Android)

You cannot run Kiro on a phone, because Kiro (AWS) ships as three desktop and browser surfaces only: the Kiro IDE for macOS, Windows, and Linux; Kiro Web, a browser dashboard for delegating autonomous agent tasks; and a CLI bound to a Kiro account. There is no native iOS, iPadOS, or Android app. What you can do is run the same kind of thing Kiro gives you at a desk, a Claude-powered coding agent, on a phone: open a cloud Ubuntu container from Cosyra for iOS or Cosyra for Android and run Claude Code, Codex CLI, OpenCode, or Gemini CLI, pre-installed. 1 hour free on signup, no credit card.

This guide was written by the Cosyra team. We cross-checked every claim about Kiro against the official Kiro site, the Kiro pricing page, the Kiro Web page, and the kirodotdev/Kiro repo, all verified 2026-06-05. Where Kiro is genuinely ahead of us, we say so.

What is Kiro?

Kiro is AWS's agentic IDE, built on Anthropic's Claude Agent SDK and defaulting to Claude Sonnet 4.5. The homepage headline, verbatim as of 2026-06-05, is "Bring engineering rigor to agentic development." Its signature is spec-driven development: you turn intent into specs, steering files, agent hooks, and "powers," and the agent validates correctness across a large codebase rather than free-typing edits. The editor is based on Code OSS, in AWS's own wording, not a direct VS Code fork, and it stays compatible with VS Code settings, themes, and Open VSX plugins.

The part that pulls people toward "Kiro on phone" searches is the agent. Kiro runs a Claude-powered loop, and Claude Code, the Anthropic agent CLI we pre-install in a Cosyra container, is the same lineage. The gap is not the agent; it is the surface. Kiro runs that agent at the desk and in the browser, and nowhere else.

The opinion we hold that a Kiro fan will push back on: for mobile coding, the spec-driven editor is the wrong unit to obsess over. Kiro's polish lives in specs, steering, and the structured intent layer, all of which assume you are sitting at a machine with a keyboard and the patience to author specs. On a phone you are not authoring a steering file on a train; you are describing one change and reviewing a diff. Kiro fans who think the spec scaffolding is the point will disagree. We think, on a phone, the agent's location is the whole game, and a hosted Linux box you reach from a native app beats a desktop IDE with no mobile build at all.

Why is there no Kiro on a phone?

There is no Kiro on a phone because none of Kiro's three surfaces is a mobile app, and AWS has not shipped one. It helps to name each surface, because "Kiro" means three different things and only by separating them does the phone answer become clear:

• Kiro IDE, desktop only. The editor downloads for macOS, Windows, and Linux from kiro.dev. There is no iOS, iPadOS, or Android build of the IDE. This is the surface that "kiro on phone" searches are actually about, and it does not run on a phone.
• Kiro Web, a browser dashboard, not a phone editor. Kiro Web lets you delegate work to an autonomous agent that "owns the outcome" and hands you back a pull request, not a status update. It is gated to the Pro, Pro+, and Power tiers. You can open it in a mobile browser, but it is a delegate-and-review machine, not an interactive terminal you code in.
• Kiro CLI, bound to a Kiro account. Kiro ships a CLI you install with a shell one-liner. "A CLI" sounds like "could run anywhere," but it is a Kiro-account-bound tool, not a generic agent you drop into your own Linux container. It does not turn a phone into a Kiro workstation.

One more trap worth naming: community-built, unofficial mobile front-ends for the Kiro agent do exist, which proves the demand is real. They are not an official AWS app, and we would not route your code through a third-party front-end. The honest state of things is that AWS ships no mobile client, and the demand is being met by other people's side projects.

How do you run a Kiro-style agent on iPhone or Android?

You run a Kiro-style Claude agent on iPhone or Android by putting the shell in the cloud and reaching it from a native app. With Cosyra that takes about four minutes: install the app, open the container, start Claude Code, add your API key, and start a session. The agent CLIs we pre-install are the part that gives you Kiro's "Claude agent in my workspace" loop without any setup.

Step 1: Install Cosyra and open a container

Download from the App Store or Google Play and sign in with Apple, Google, or email. On first launch we provision a fresh Ubuntu 24.04 x86_64 container with Node.js, Python, Git, and tmux already on it.

Step 2: Start Claude Code, the same agent lineage as Kiro

Kiro is built on Anthropic's Claude Agent SDK and defaults to Claude Sonnet 4.5. We pre-install Claude Code, the Anthropic agent CLI, plus Codex CLI, OpenCode, and Gemini CLI, so you do not have to assemble that yourself. Run whichever matches the model you pay for; claude is the closest match to what Kiro runs.

Step 3: Add your provider API key (BYOK)

Claude Code is bring-your-own-key, so you export your Anthropic key and write it into your shell config once. It persists in the container's home volume across sessions and across your phone, tablet, and the web. We do not proxy or meter model billing; you pay Anthropic directly, with none of Kiro's per-credit accounting or overage math.

Step 4: Clone a repo and start a session

Clone your repository, cd into it, and start the agent. You describe the change, it edits files and runs commands in the same shell. This is the Claude agent loop Kiro runs at the desk, running on a phone.

Step 5: Keep it running with tmux

Wrap long sessions in tmux so a dropped signal or a locked phone does not kill the agent mid-task. The session keeps running on the container; you re-attach when you come back.

What does this actually feel like on a phone?

The honest pitch is a Claude agent session you can start anywhere and a real shell underneath it. Three places we run it.

A fix on the train, committed before your stop

You noticed a bug on the way out. On the train, open Cosyra, cd into the repo, run claude, and describe the fix. It edits the file and you commit it. By the time you are off the train, the change is a reviewable commit on the branch instead of a note you have to act on at the desk where Kiro lives.

A refactor from the couch with the agent doing the typing

Saturday morning, phone in hand. Point Claude Code at a module: "split this file into a parser and a formatter, keep the public API the same." The agent runs the edits and the tests in the same shell, and you review the diff on the phone before keeping it. The small on-screen keyboard barely matters because you are describing intent, not typing every line. This is the part of Kiro's Claude workflow that survives the move to a phone.

Checking a long task from the waiting room

You kicked off a build or a long agent run before leaving. From a waiting room, attach to the tmux session and watch it finish, or steer it if it went sideways. The container kept running while your phone was in your pocket. For the cross-agent picture, see the AI coding agents on mobile pillar.

What are the real limits here?

This setup is not Kiro, and it is not trying to be. Knowing where it stops helps you match it to the right job.

• You don't get Kiro's spec-driven layer. Specs, steering, agent hooks, and "powers" are a genuinely differentiated way to manage intent across a large codebase, and none of that is here. At a desk, that structure is a real reason to use Kiro.
• No autonomous PR agent. Kiro Web takes a goal and hands back a pull request. Cosyra is an interactive terminal you drive, not a background agent that owns a task end to end. Those are different tools.
• No offline mode. The container lives in the cloud, so no internet means no terminal. We lay out the broader local-versus-cloud trade-off in Cosyra vs Termux.
• You pay your provider. Claude Code is BYOK, so model tokens are billed by Anthropic directly. Our subscription covers the machine, not the model, which is the opposite of Kiro's credit-metered model.

Who should pick which?

Choose Kiro if you live at a desk and want a spec-driven, Claude-powered IDE with structured intent, steering, and hooks, you want an autonomous agent that hands you back pull requests, or you are an AWS-native team that values IAM Identity Center SSO. A free tier with Claude Sonnet 4.5 makes it cheap to try, and we would reach for it at a desk too. For the full feature-by-feature breakdown, see Cosyra vs Kiro.

Choose Cosyra if you want to run a Claude agent from your phone on the train, the couch, or a waiting room, you want Claude Code, Codex CLI, OpenCode, and Gemini CLI sitting in one container with no install step, or you want a persistent Linux box that follows you across iPhone, Android, and web. Many people run both: Kiro at the desk, Cosyra when the laptop is closed.

Try Kiro first if your work happens almost entirely at a desk, you want a spec-driven workflow more than a remote shell, or you want an autonomous agent that returns pull requests. Because Kiro is built on the same Anthropic lineage, the natural Cosyra starting point is Claude Code on phone. If your bigger screen is an iPad rather than a phone, the answer is the same on a tablet, see Kiro on iPad. Two other desktop-only agentic tools land in the same spot and resolve the same way, by running the agent CLIs in a cloud container: Zed on a phone, Windsurf on a phone, and Devin Desktop on a phone (Windsurf was renamed Devin Desktop on 2026-06-02 and stayed desktop-only through the rename, so it hits the same wall as Kiro). If you are weighing the broader question of what coding agents on a phone even look like, start with the AI coding agents on mobile pillar.

Frequently asked questions